Temperature control characteristics analysis of lead-cooled fast reactor with natural circulation

被引：11
|
作者：
Yang, Minghan [1 ]
Song, Yong [1 ]
Wang, Jianye [1 ]
Xu, Peng [1 ]
Zhang, Guangyu [1 ]
机构：
[1] Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China
来源：
ANNALS OF NUCLEAR ENERGY | 2016年 / 90卷
关键词：
LFR; Natural circulation; Temperature control characteristic; Transfer function matrix; Frequency domain analysis method; CONCEPTUAL DESIGN; STRATEGY;
D O I：
10.1016/j.anucene.2015.11.029
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Lead-cooled Fast Reactor (LFR) with natural circulation in primary system is among the highlights in advance nuclear reactor research, due to its great superiority in reactor safety and reliability. In this work, a transfer function matrix describing coolant temperature dynamic process, obtained by Laplace transform of the one-dimensional system dynamic model is developed in order to investigate the temperature control characteristics of LFR. Based on the transfer function matrix, a close-loop coolant temperature control system without compensator is built. The frequency domain analysis indicates that the stability and steady-state of the temperature control system needs to be improved. Accordingly, a temperature compensator based on Proportion-Integration and feed-forward is designed. The dynamic simulation of the whole system with the temperature compensator for core power step change is performed with SIMULINK and RELAP5-HD. The result shows that the temperature compensator can provide superior coolant temperature control capabilities in LFR with natural circulation due to the efficiency of the frequency domain analysis method. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：54 / 61
页数：8
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